Effect of high-frequency currents on interrupting performance of GCBs

With electric power systems, it is shown by calculations that as the transmission voltage rises, high-frequency components contained in the fault current could remain until current interruption. This paper describes the influence of high-frequency current on the thermal and dielectric performance of a gas circuit breaker (GCB) by analyzing arc and hot gas flow. It has been proved that the model used for interruption tests simulating high-frequency components has sufficient performance for practical application.<
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